Glass rain may give planet blue hue
/http%3A%2F%2Fnews.bbcimg.co.uk%2Fmedia%2Fimages%2F68678000%2Fjpg%2F_68678868_68678860.jpg)
Glass rain may give planet blue hue
For the first time, astronomers have determined the true colour of a planet orbiting another star. The world, known as HD189733b, has a deep azure hue - probably the result of silicate (glass) rain